What is another word for photoelectricity?
Pronunciation: [fˌə͡ʊtə͡ʊɪlɛktɹˈɪsɪtˌi] (IPA) 
Photoelectricity, or the emission of electrons from a material's surface when exposed to light, has been an important phenomenon in both physics and engineering. There are several synonyms for photoelectricity, including photoemission, photovoltaics, and photoconductivity. Photoemission refers specifically to the ejection of electrons by photons, while photovoltaics refers to the generation of electrical energy from light. Photoconductivity refers to the increase in electrical conductivity of a material when exposed to light. Other related terms include optoelectronics, which refers to the study of how light affects electronic devices, and quantum efficiency, which measures the effectiveness of absorbing and converting photons into charged particles.
